The 36-year-old actress, who has been married to Cash Warren since 2008, made the announcement via Instagram on Monday, sharing, “@cash_warren and I are officially going to be outnumbered #babyonboard #herewegoagain 👶🏼🤰🏽#blessed🙏.”

The caption accompanied a video of Alba with the couple’s two daughters: 9-year-old Honor and 5-year-old Haven.

Alba, also co-founder of The Honest Company brand of household and kids’ products, did not disclose her due date but did show off her growing bump in the Instagram post.